Crystal structure and Hirshfeld surface analysis of di-μ-chlorido-bis­[(aceto­nitrile-κN)chlorido­(ethyl 5-methyl-1H-pyrazole-3-carboxyl­ate-κ(2) N (2),O)copper(II)]

The title compound, [Cu(2)Cl(4)(C(5)H(10)N(2)O(2))(2)(CH(3)CN)(2)] or [Cu(2)(μ(2)-Cl)(2)(CH(3)—Pz-COOCH(2)CH(3))(2)Cl(2)(CH(3)CN)(2)], was synthesized using a one-pot reaction of copper powder, copper(II) chloride dihydrate and ethyl 5-methyl-1H-pyrazole-3-carboxyl­ate (CH(3)—Pz-COOCH(2)CH(3)) in aceto­nitrile under ambient conditions. This complex consists of discrete binuclear mol­ecules with a {Cu(2)(μ(2)-Cl)(2)} core, in which the Cu⋯Cu distance is 3.8002 (7) Å. The pyrazole-based ligands are bidentate coordinated, leading to the formation of two five-membered chelate rings. The coordination geometry of both copper atoms (ON(2)Cl(3)) can be described as distorted octa­hedral on account of the aceto­nitrile coordination. A Hirshfeld surface analysis suggests that the most important contributions to the surface contacts are from H⋯H (40%), H⋯Cl/Cl⋯H (24.3%), H⋯O/O⋯H (11.8%), H⋯C/C⋯H (9.2%) and H⋯N/N⋯H (8.3%) inter­actions.